2012 Tiguan rear fog lights

My brother just purchased a 2012 Tiguan and I've noticed that it already has the rear fogs and bulbs in. I tried changing his switch with my euro switch but they still wouldn't go on. Would the wiring be the same as for the mkv's with the trigger wire? I did this mod on my mkv jetta, anyone do it yet?

My brother just purchased a 2012 Tiguan and I've noticed that it already has the rear fogs and bulbs in. I tried changing his switch with my euro switch but they still wouldn't go on. Would the wiring be the same as for the mkv's with the trigger wire? I did this mod on my mkv jetta, anyone do it yet?

I think we are all having issues with our 2012's...no one has figured this out yet...or at least I am fairly sure.

Ran the trigger wire based on the mkvi procedure, must work but I was wrong about the bulbs being already inside. The taillights are actually missing the bulbs as the fog dash light illuminates and the bulb out warning appeared. Took the bulb holder out, and the h21w bulb is missing on both sides. Ordered the bulbs online as no part store had them around the neighborhood. Hope this works... They are on the way, I will update the post once everything works.

Seemed to me like everything would be in working order. The trigger wire was ran based on the mkvi diy and then the bulb out indicator was on the dashboard which I took as a positive note that everything should be ok. Received the bulbs Saturday, i put them in and the light disappeared. I pulled the euro switch twice the rear fog indicator is on but the bulbs still don't light up. Not sure whats going on or what to do now. Tiguan has both rear lights in the bumper so the rest of the install didn't apply from the mkvi and swapping the reverse lights. Anyone have an idea?

According to the schematic the cable between light switch and central electronic (J519) is equipped according to equipment.
The cable for rear fog light goes from switch pin 7 (gray/white) to pin 17 on the 52 pin connector on J519.
(Same for the front fog light: From switch pin 5 (white/blue) to pin 21 on the same connector on J519.)

This just proves that the switch is sending power over and, but for some reason only the left rear fog light is getting power but still no output. Unlike the MKVI GTI which is switching over one reverse for the second fog, the Tiguan has both reverses in the bumper so not sure how to get power to the second one. Stuck for now please help.

Here's a thought...my 2002 Audi A4 only supported the left rear fog lamp (enabled at the factory). That is not uncommon. Could be the same with the Tiguan. The one NA Tiguan I seen with a rear fog mod was also the same.

And based on your VCDS, that is the case. Power to the left side only. Why would the NA 12 Tiguan come with a light assembly that fully supports a rear fog lamp when the 09-11s did not. You had to buy a separate left rear light assembly to get it to work. I suspect it has a socket but it doesn't, work. Its easy to check with a meter.

I can do that. I completely agree with your theory of the previous Tiguans and replacing the light. I bought two bulbs and threw them in, thinking everything would be ready to go. Will check with a meter and update here.

The OP did not post back their results so for future reference, the N.A. 2012 Tiguan requires a different rear lighting housing to enable the rear fog lamp. Just putting in a bulb, switch, and coding will not work.

Not sure why it would require a new housing, as there is room in the OEM housing as well as room on the socket for h21w bulb which i already put in, and everything fits. What would a housing itself do?

If the actual wiring/busbar isn't there, the socket is pretty much useless. You can press on your current path or order part no. 5N5945094. Don't ask me why VW does what it does but that's the part no. contains the rear fog lamp. It is a Euro left rear (inner) light assembly that supports the fog lamp.

Seems like for the 2012 CC some of the descriptions of the Bytes/Bits are missing
I'd also like to get even radio frequencies (e.g. 88.8)

Anybody knows how to do this?

I'd suggest that you start a new thread. Someone who may have done it may not necessarly be scoping out a thread with Tiguan in the subject. In that new thread, I would post the results of a autoscan per the rules of this particular forum so those who know something can read what modules you have to provide a more intelligent answer.

Actually ran into some trouble not sure if my wiring caused this, but the outer tail brake lights aren't working at all. Checked out at vw, and had to order a module which is on back order nationwide.

Did you recode it? I tried blindly recoding it to Tiguan RoW and the outer brake lights became the turnsignals only. The inner brake lights (on the liftgate) started acting as the brake lights. Got error messages for Rear L/R brake lights and front L/R side lights. I had to take it to a dealer to recode.